You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Finger Ridge-Counts and Handedness
Richard L. Jantz, Fred K. Fohl and James W. Zahler
Vol. 51, No. 1 (March 1979), pp. 91-99
Published by: Wayne State University Press
Stable URL: http://www.jstor.org/stable/41464518
Page Count: 9
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
This study is a re-evaluation, using ridge-counts, of the relationship between finger dermatoglyphics and handedness. It shows, like earlier studies using pattern types, that the difference between left and right handers is small. Comparison of mean ridge-counts between the handedness groups produced only one significant difference in males and three in females. Comparison of variances and correlations between handedness groups show more marked differences than means. Left handers are characterized by lower variances and lower correlations between ridge-counts on different digits. This indicates that left handers show greater within group homogeneity than right handers, but higher levels of within individual variation. These findings do not permit a choice between genetic and environmental hypotheses, but they clearly show that early prenatal development plays a role in the etiology of handedness.
Human Biology © 1979 Wayne State University Press